Carbureter.



a. 'G. HUSZKR;

CARBURETER.

APPLIQATlON FILED JUNE 12, I913.

1,146,625, Patented July 13, 1915.

3 SHEETS-SHEET I.

WITNE88E8I a; e. HUSZKR. CARBURETEBL APPLICATION FILED JUNE 12, 1913.

Patented July 13, 1915.

3 SHEETS-SHEET 2- A DIM/EV Gnza. G. nUszAn, on NEW YORK, N. Y.

CARBURETER.

To all whomz't may concern:

Be it known that I, Giiza G. HUsZAR, a subject of the King of Hungary, and resident of the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Carbureters, of which the following is a specification.

The present invention relates to carbureters, and more particularly to a device of this character, the operation of which is dependent upon suction produced by the working piston or pistons of the engine.

In most of the carbureters air is caused to flow in a more or less confined stream and at high velocity past the discharge end of a permanently open liquid-hydrocarbon supply conduit, whereby the liquid hydrocarbon is volatilized, and the vapor mixed with air to form carbureted air. Charge forming devices of this class are usually'connected with a float chamber, and it is obvious that the level of the liquid hydrocarbon in the conduit or nozzle, as it is termed, corresponds exactly to' that of the level of the liquid hydrocarbon in the float chamber. "When the carbureter is mounted upon an automobile, it is obvious that the level of the liquid hydrocarbon in the nozzle will float up and down, particularly when the automobile travels over a rough road or on an incline. These variations in the level will, of course, result in a variation of. the uni formity of mixture, thereby causing serious trouble and necessitating frequent settings of the parts of the carbureter.

One ofthe objects of the invention is to obviate these defects, and to provide a carbureter in which the volatilizing action takes place from the surface'of an absorbent material, communicating with and kept in saturated condition by the liquid hydrocarbon, the saturation of said absorbent material being independent to a great extent of the variation of the level of the liquid hydrocarbon in the float chamber or container.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter fully described, pointedout inthe appended claims and illustrated in the accompanying drawings, it being-understood that. many changes may be made in the size and proportion of the several parts and details of construction within the scope of the appended Specification of Letters Patent.

Application filed June 12, 1913.

Patented July 13, 1915.

Serial No. 773,264.

claims without departing from the spirit or sacrificing any of the advantages of the invention.

-A few of the many possible embodiments of the invention are illustrated in the accompanying drawings, in which Figure 1 is a vertical central section taken through a carburetor constructed in accordance with the present invention, the device being shownpartly in elevation; Fig. 2 is a section taken on line 2-2 of Fig. 1; Fig. 3 is a vertical central section, partly in elevation, of a modified device; Fig. 4.- is a section taken on line 4 -4: 0f Fig. 3; Fig. 5 is a section taken on line,55 of Fig. 3; and Fig. 6 is a vertical central section, partly in elevation, taken through a further modification of the invention.

Referring now more particularly to Figs. 1 and 2,the numeral 10 indicates a metallic casing, preferably cylindrical in form, its bottom 11, which is preferably made in tegral with the said casing, being provided with a number of inlet openings 12, through which air enters the device. The upper open end of the casing supports atubular joining member '13, attached to the said casing in any suitable manner, and provided at its upper free end'with a flange 14, which is adapted to be attached to a pipe, leading to an engine or other destination of the gas. Around the upper section of the casing is formed a jacket 15, through which a heating medium may circulate through pipes which are connected, for instance, with the water cooling system of the engine.

Within the casing, and more particularly a little distance above its bottom, is, preferably, centrally disposed a receptacle 16, communicating through a passage 17 with a float chamber 18, which is, preferably, made integral with the said casing. The float chamber comprises a closed vessel, having a float operating a needle valve, which controls the flow of the liquid hydrocarbon to the receptacle 16. The construction of the float chamber may be of any suitable type, and, inasmuch as its mode of operation is well known, a further description thereof does not seem to be necessary. From the top ofthe receptacle 16 extends downward into the same a hollow conical portion 19, with which is made integral a downwardly projecting tubular section 20, the latter stopping short of the bottom of the said receptacle. The conical portion 19 of the receptacle serves as a seat for a similarly shaped portion 21 of a block 22 of absorbent ma terial, the said block projecting above the upper edge of the receptacle. The block eX- tends also toward the bottom of said recep: tacle as far as the tubular section 20 therein. The top of the block is covered by a, preferably, metallic disk 23, attached by a screw, or otherwise, thereto. The block 22 has a cylindrical recess 24 in order to present a large surface to the liquid hydrocarbon which rises in the receptacle 16 to the level in which it is maintained in the float chamber 18.

lVithin the casing 10 is furthermore slidably arranged a tubular body 25, which fits snugly into the said casing. This tubular body is provided with a contracted portion 26, whereby an annular space is formed between the inner face of the cylindrical casing and the outer face of said contracted portion. To this annular space air is admitted through perforations 27 in the easing, the air being permitted to leave the annular space through openings 28 in the contracted portion of the tubular body. Above the contracted portion 26 of the tubular member is disposed a horizontal partition 29, provided with apertures 30, which communicate with the interior of upwardly extending perforated tubes 31, the upper free ends of which are closed. A head 32 closes the upper end of the tubular body 25. This head is also provided with apertures, denoted by the numeral 33, the latter communicating with downwardly extending perforated tubes 34, the lower free ends of which are closed, said closed ends being, however, provided each with a small per foration 35 for a purpose hereinafter to be described. For actuating the tubular body 25 and the parts carried thereby, a disk 36 is keyed, or otherwise attached, to a spindle 37, which is journaled in the walls of the joining member 13. To this disk is pivoted at 38 one end of a link 39, its other end. being fulcrumed at 40 to the head 32. An actuating rod 41 is pivoted at 42 to the disk 36, said rod being connected with means which extend within the reach of the operator.

The operation of the device is as follows: When the actuating rod 41 is shifted downward and thereby the tubular body 25 moved upward, and suction occurs in the joining member 13, air is drawn through the inlet openings 12 into the casing 10. This air rushes up past the exposed face of the absorbent block 22 toward the outlet of the casing. The air passing toward the outlet volatilizes the liquid hydrocarbon upon the exposed surface of the absorbent block, which is kept in saturated condition by the liquid hydrocarbon, a certain volume of the liquid hydrocarbon, said volume depending upon the amount of air, entering the upwardly extending tubes 31 and leaving the same through their perforations to enter through the perforations the clownwardly extending tubes 34, from where it passes toward the outlet of the carburetor. In this manner acombustible mixture is formed to be supplied to and burnt within the engine. This combustible mixture is well mixed since it travels in a circuitous way toward the outlet of the carbureter, and is made more uniform or homogeneous by the air which enters through the perforations 27 and the openings 28 the tubular body 25, inasmuch as the currents of air, flowing through the openings 28, break up the vapor particles of the liquid hydrocarbon effectively and mingle with the same intimately.

The absorbent block 22 acts as a filter for the liquid hydrocarbon and prevents impurities from entering the carbureter. The moisture is prevented from collecting in the downwardly extending tubes 34 inasmuch as the closed ends thereof are provided with small perforations 35, through which the liquid is adapted to drip onto the partition 29 and, as it collects on the same as high as the lowermost perforations in the tubes 31, y

it will flow through. the same toward the bottom 11 of the casing, to leave the latter through the openings 12.

It is obvious that the amount of air entering the carbureter can be easily varied by means of a simple shifting of the tubular body 25. The latter acts thus as a throttle valve. In the position shown inFig. 1 of the drawings, a small amount of air is adapted to pass toward the outlet of the carbureter. If'the tubular member 25 is shifted" upward, the amount is increased, while if shifted from the position shown in Fig. 1 a little distance downward, the supply of air is entirely out off,inasmuch as the contractedportion of the tubular body 25 will contact with the covering disk 23.

A modification of the invention is illustrated in Figs. 3 to 5, inclusive. This device comprises a casing 43, surrounded by a jacket 44, and provided with a lower open end 43 constituting the air inlet. The upper end of the casing serves as a seat for a tubular joining member 45, the flange 46 of which is adapted to be attached to a pipe.

leading to the engine. Within the lower section of the casing is centrally arranged a, preferably, cylindrical receptacle 47, communicating through a passage 48with a float chamber 49. In this receptacle is seated an absorbent block 50, the upper end of which projects beyond the upper edge of the receptacle 47 A partition 51 is disposed within and near the upper end of the casing 43. This partition is provided with apertures 52, communicating with downwardly extending tubes 53, the open lower ends 54 of which are disposed in apertures 54: of a disk 54:", the latter being located a substantial distance above the upper face of the absorbent block 50. Legs 55 serve to hold the tubes in position within the casing. The upper sections of the tubes are provided with perforations 53.

In the member is is inserted a throttle 56 for a well known purpose, its spindle 57 being provided with a lever 58, that is connected with an actuating rod within the reach of the operator.

In operation, the air enters the open lower end 13 of the casing, volatilizes the liquid hydrocarbon upon the exposed surface of the absorbent material, enters the tubes 53 and is carried toward the outlet of the carbu reter, the amount of air being controlled by the throttle 56. A certain volume of air passes toward the partition 51 outside of the tubular members. This air flows through the perforations 53 in the said tubes and is mixed with the combustible mixture therein. The air flowing through the perforations into the tubes makes the mixture more uniform as it breaks up the vapor particles of the liquid hydrocarbon.

A. further modification of the invention is illustrated in Fig. 6 of the drawings, differing from the one shown in Figs. 3 to 5, inclusive, in that the receptacle 4? is annular in shape, the absorbent material, denoted by the numeral 59, being ring-shaped. The tubes are attached to the partition 51, closing the casing 43, and to a disk 60, which rests upon the, surface of the absorbent material 59. Air is adapted to enter through the lower open end 43 of the casing and through a centrally arranged upwardly extending pipe-like structure 61 in the receptacle 17. l Vithin the pipe-like structure 61 is disposed a throttle 62, connected by a rod 63 with the throttle 56. As the throttle 56 is shifted toward its open position, the throttle 62 will move therewith. Two distinct currents of air flow thus through the carbureter, one of the same entering the open end 13 and volatilizing the liquid hydrocarbon upon the exposed surface of the absorbent material, passing then outside of the tubes and entering the same through the perforations therein, to leave the carbureter through its outlet, the other current entering through the pipe-like structure 61, volatilizing the liquid hydrocarbon upon the inner face of the ringlike absorbent material, and entering the tubes, to be mixed with the combustible mixture which enters the said tubes through their perforations.

What I claim is 1. In a carbureter, the combination with a casing having air inlets in its bottom and an outlet in its top, of a receptacle therein communicating with a supply of liquid hydrocarbon, a block of absorbent material in said receptacle kept in saturated condition by the liquid hydrocarbon therein, the said block projecting above the upper edge of said receptacle, a partition having apertures disposed within said casing, and downwardly projecting perforated tubes communicating with said apertures forming passages for the air rushing past the exposed surface of said block and for causing the air outside of said tubes to flow in currents through the perforations into said tubes and to intermingle with the combustible mixture therein.

2. In a carbureter, the combination with a casing having air inlets in its bottom and an outlet in its top, of a receptacle therein communicating with a supply of liquid hydrocarbon, a. block of absorbent material in said receptacle kept in saturated condition by the liquid hydrocarbon therein, the said block projecting above the upper edge of said receptacle, a tubular body slidably arranged in said receptacle having a contracted portion adapted in cooperation with said block to predetermine the amount of air flowing past said block, and means upon said tubular body above said block for causing the air rushing past the exposed surface of said block to move in a circuitous way toward said outlet.

3. In a carbureter, the combination with a casing having air inlets in its bottom and an outlet in its top, of a receptacle therein communicating with a supply of liquid hydrocarbon, a block of absorbent material in said receptacle kept in saturated condition by the liquid hydrocarbon therein, the said block projecting above the upper edge of said receptacle, a tubular body slidably arranged in said receptacle having a contracted portion adapted in cooperation with said block to predetermine the amount of air flowing past said block, and means upon said tubular body above said block for causing the air rushing past the exposed surface of said block to move in a circuitous way toward said outlet, said casing and tubular body being provided with auxiliary air in let openings above the uppermost plane of said block.

Signed at New York, in the county of New York and State of New York, this 28th day of May, A. D. 1913.

eE'Zii e. HUSZAR.

Witnesses SIGMUND Hnazoo, S. BIRNBAUM.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

